78688808967 has 16 divisors (see below), whose sum is σ = 107083120640. Its totient is φ = 51387309792.

The previous prime is 78688808917. The next prime is 78688808971. The reversal of 78688808967 is 76980888687.

It is not a de Polignac number, because 78688808967 - 2¹¹ = 78688806919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78688808917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1277068 + ... + 1337265.

It is an arithmetic number, because the mean of its divisors is an integer number (6692695040).

Almost surely, 2^78688808967 is an apocalyptic number.

78688808967 is a deficient number, since it is larger than the sum of its proper divisors (28394311673).

78688808967 is a wasteful number, since it uses less digits than its factorization.

78688808967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2614542.

The product of its (nonzero) digits is 520224768, while the sum is 75.

The spelling of 78688808967 in words is "seventy-eight billion, six hundred eighty-eight million, eight hundred eight thousand, nine hundred sixty-seven".